Pharmaceutical compositions and methods of treatment with 1-oxo-1H-2-benzothio pyran-3-carboxylic acid derivatives
US4018891A · kind A · utility
0Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1975 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | Nov 17, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D335/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The method comprises administering to an animal a novel pharmaceutical composition containing a substituted-1-oxo-1H-2-benzothiopyran-3-carboxylic acid to inhibit antigen-antibody reaction in said animal. Representative of the compounds that can be used in the method are: PA1 1-Oxo-1H-2-benzothiopyran-3-carboxylic acid, and PA1 Sodium 6-methoxy-1-oxo-1H-2-benzothiopyran-3-carboxylate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.